derive a rule

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• Derive — De*rive , v. i. To flow; to have origin; to descend; to proceed; to be deduced. Shak. [1913 Webster] Power from heaven Derives, and monarchs rule by gods appointed. Prior. [1913 Webster] …   The Collaborative International Dictionary of English

• Rule of 72 — In finance, the rule of 72, the rule of 70 and the rule of 69 are methods for estimating an investment s doubling time. The number in the title is divided by the interest percentage per period to get the approximate number of periods needed for… …   Wikipedia

• Rule of inference — In logic, a rule of inference (also called a transformation rule) is a function from sets of formulae to formulae. The argument is called the premise set (or simply premises ) and the value the conclusion . They can also be viewed as relations… …   Wikipedia

• Rule of the shorter term — The rule of the shorter term, also called the comparison of terms, is a provision in international copyright treaties. The provision allows that signatory countries can limit the duration of copyright they grant to foreign works under national… …   Wikipedia

• rule of law —    In a free society, there is a concern to maintain human liberty in the face of increasing state activity. The problem is how on the one hand to provide powers for those in government to operate effectively, yet on the other hand to ensure that …   Glossary of UK Government and Politics

• Rule Interchange Format — The Rule Interchange Format (RIF) is a W3C recommendation track effort to develop a format for interchange of rules in rule based systems on the semantic web. The goal is to create an interchange format for different rule languages and inference… …   Wikipedia

• Chain rule — For other uses, see Chain rule (disambiguation). Topics in Calculus Fundamental theorem Limits of functions Continuity Mean value theorem Differential calculus  Derivative Change of variables Implicit differentiation …   Wikipedia

• Social rule system theory — is an attempt to formally approach different kinds of social rule systems in a unified manner. Social rules systems include institutions such as norms, laws, regulations, taboos, customs, and a variety of related concepts and are important in the …   Wikipedia

• The Rule of Faith —     The Rule of Faith     † Catholic Encyclopedia ► The Rule of Faith     The word rule (Lat. regula, Gr. kanon) means a standard by which something can be tested, and the rule of faith means something extrinsic to our faith, and serving as its… …   Catholic encyclopedia

• Oja's rule — Oja s learning rule, or simply Oja s rule, named after a Finnish computer scientist Erkki Oja, is a model of how neurons in the brain or in artificial neural networks change connection strength, or learn, over time. It is a modification of the… …   Wikipedia

• Cramer's rule — In linear algebra, Cramer s rule is a theorem, which gives an expression for the solution of a system of linear equations with as many equations as unknowns, valid in those cases where there is a unique solution. The solution is expressed in… …   Wikipedia